meshcore-mcp AGENTS.md

A project instruction file for agents and developers working on meshcore-mcp. The project is an MCP server, meaning it gives AI applications structured access to a MeshCore device and its reachable mesh network.

In plain words
What is it for?
Orienting contributors to the repository, its agent contracts, remote administration details, documentation layers, and device-focused architecture.
Why use it?
It explains the project's purpose, boundaries, documentation structure, companion projects, and the rules agents must follow.

Instructions file for CodexOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/dpup/meshcore-mcp/agents-md
Clone the repo
git clone --depth 1 https://github.com/dpup/meshcore-mcp

Made for: Codex, OpenCode.

Per session 2,794 This file is loaded in full into every session.
When invoked 2,794 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.02794 $0.02794
Opus 5 $0.01397 $0.01397
Sonnet 5 $0.00559 $0.00559
Haiku 4.5 $0.00279 $0.00279

Measured 2d ago against content hash cfbd3af3ae63, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

meshcore-mcp AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 196 lines

How it starts

The opening of the file, as written. The whole thing — 196 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Guidance for AI agents (and humans) working on meshcore-mcp. Keep this current when architecture or conventions change.

What this is

A Model Context Protocol (MCP) server that exposes a MeshCore node — and the mesh reachable through it — as a clean, high-signal surface of tools, resources, and prompts for any MCP client (Claude Code, or meshcore-elmer's bridge). It is the device layer, and ungated by design: it contains no conversation policy, admin-channel gate, or autonomous behavior (that belongs to meshcore-elmer). See docs/plans/ for the PRD (v0.3) and execution plan.

Docs are three layers: README.md (landing + the Claude Code MCP-config snippet

  • the tool/resource/prompt tables), docs/guide.md (hand-written concepts & recipes), and docs/api.md (generated by TypeDoc); llms.txt indexes all three for agents.

Companion projects, by the same author — keep all three consistent in stack, style, and tone:

  • @dpup/meshcore-ts — the typed device client this server is built on (runtime dependency).
  • @dpup/meshcore-sim — the deterministic simulator we test and demo against (dev dependency; never shipped).

The two contracts (read this first)

meshcore-mcp is a thin server wedged between two contracts it does not own.

Below — @dpup/meshcore-ts. The server holds one persistent MeshCoreClient (autoSync: true) and consumes its normalized surface: named events (contactMessage, channelMessage, channelData, advert, …), typed models, hex-string keys, Date timestamps, typed errors. It never touches @liamcottle/meshcore.js directly. MeshService takes its MeshCoreClient by injection — production builds MeshCoreClient.tcp(host, port); tests build new MeshCoreClient(sim.asConnection()). Nothing below MeshService knows which.

Above — MCP, via @modelcontextprotocol/sdk's McpServer: tools (registerTool, Zod schemas, annotations), resources (registerResource, the subscribable live stream), prompts (registerPrompt), over a StdioServerTransport.

Read the full file on GitHub · 196 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 196 lines · 2,794 tokens per session scan A cfbd3af3ae63

Subscribe to this mod's changes

meshcore-mcp AGENTS.md is an instructions file published in the GitHub repository dpup/meshcore-mcp (1 stars, last pushed 3mo ago), licensed MIT. It adds 2,794 tokens to every session, about $0.0140 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.